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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Chandler Eckard# | .4474 | 2019-2023 | |
| 2 | Tetsu Araki# | .4393 | 2017-2025 | |
| 3 | Shiro Yoshida | .4252 | 2015-2025 | |
| 4 | Toshiki Takaki | .4112 | 2014-2025 | |
| 5 | Noriyuki Rin# | .4108 | 2015-2027 | |
| 6 | Raúl Martínez | .4030 | 2014-2020 | |
| 7 | Adhivahana Vandita# | .4015 | 2022-2028 | |
| 8 | Barrett Morgan# | .4010 | 2020-2024 | |
| 9 | Todd Barrett | .3983 | 2017-2020 | |
| 10 | Pedro Ramírez | .3705 | 2018-2023 | |
| 11 | Iemochi Hayashi | .3641 | 2017-2024 | |
| 12 | Alberto Gonzáles | .3633 | 2015-2022 | |
| 13 | Shiro Sugahara | .3604 | 2015-2022 | |
| 14 | Jae-hoon Park# | .3441 | 2021-2024 | |
| 15 | Seitaro Yamada# | .3410 | 2017-2027 | |
| 16 | Lewis Buckley | .3317 | 2019-2026 | |
| 17 | Shunso Kono | .3100 | 2015-2021 | |
| 18 | Mamoru Nemoto | .3063 | 2016-2024 | |
| 19 | Mitsuzuka Kobayashi# | .2863 | 2013-2017 |
